ATI 904 SPRAG

the stock 904 sprag is strong..it is riveted in....to remove you drill out the rivets...and then bolt in a new sprag.....nothing gained..

been racing with the stock sprags for years...one transmission has a bolt in because the ring gear broke...and I did not check the spraq and it came apart..
you can buy a spring and roller kit for 5 bucks from Bulkpart.com .....